Rated 3 out of 5 stars

Until it ceases to render addons dysfunctional, i use:
https://addons.mozilla.org/en-US/firefox/addon/multiple-tab-handler/

This review is for a previous version of the add-on (0.4.0.3.1-signed). 

Rated 4 out of 5 stars

Just like previous post, can't open addons section even with Firefox 17 beta.

This review is for a previous version of the add-on (0.4.0.3.1-signed).